1. MarginalMedia
This next video your about to see is recorded by a YouTuber named MarginalMedia with over 85 thousand subscribers on his channel. He explains that he went to the Great Barrier Reef to test an underwater cage that the people had bought for the camera. He also explains that the video is owned and recorded by himself and not from any prebuilt documentary. Anyways, here is the footage, so you be the judge in what is shown...